Integrated temperature sensitive wound dressing device

Abstract

The present invention pertains to an integrated wound dressing device for treatment of an insertion site of percutaneous and drug delivery devices. The integrated wound dressing device preferably comprises a transparent film layer having a bottom side, a top side and a perimeter. The bottom side is coated with an adhesive impregnated with an antimicrobial agent. The transparent film has a radius cutout between a central opening and the perimeter. A liquid crystal temperature sensitive film with an adhesive placed on the top side of the transparent film layer is preferably near and around the central opening. The dressing also has a layer of double folded release paper below the bottom side of the transparent film layer. The preferred TLCs used are cholesteryl esters with a preferable temperature detection range of 35-40° C. The preferred antimicrobial agent is chlorohexidine gluconate (CHG).

What is claimed is: 
     
         1 . An integrated wound dressing device comprising:
 a gas-permeable transparent film layer having a bottom side, a top side and a perimeter;   the bottom side is coated with an adhesive impregnated with an antimicrobial agent;   the transparent film having a radius cutout between a central opening and the perimeter; and,   a liquid crystal temperature sensitive film with an adhesive placed on the top side of the transparent film layer near the central opening.   
     
     
         2 . The dressing device of  claim 1  further comprising a layer of double folded release paper below the bottom side of the transparent film layer. 
     
     
         3 . The dressing device of  claim 1  where there is a radial gap between the central opening and the liquid crystal sensitive film. 
     
     
         4 . The dressing device of  claim 1  where the liquid crystal temperature sensitive film is positioned around the central opening. 
     
     
         5 . The dressing device of  claim 1  where the liquid crystal temperature sensitive film is position around a half of the central opening. 
     
     
         6 . An integrated wound dressing device comprising:
 a gas-permeable transparent film layer having a bottom side, a top side and a perimeter;   the bottom side is coated with an adhesive layer impregnated with an antimicrobial agent and a non-toxic mixture of liquid crystal temperature sensitive esters; and,   the transparent film having a radius cutout between a central opening and the perimeter.   
     
     
         7 . The dressing device of  claim 6  further comprising a layer of double folded release paper below the bottom side of the transparent film layer. 
     
     
         8 . The dressing device of  claim 6  where the liquid crystal temperature sensitive esters are mixed with black carbonaceous powder. 
     
     
         9 . The dressing device of  claim 6  where the liquid crystal temperature sensitive esters are only present on a half of the transparent film adhesive layer. 
     
     
         10 . An integrated wound dressing device comprising:
 a foam layer having a perimeter;   said foam layer is permeated with a mixture of an antimicrobial agent and a non-toxic temperature sensitive liquid crystal esters; and,   the foam layer has a radius cutout between a central opening and the perimeter.   
     
     
         11 . An integrated wound dressing device comprising:
 a gas-permeable transparent film/cast containing dispersed aggregates of temperature sensitive liquid crystal esters having a bottom side and a top side;   the top side is smooth;   the bottom side is coated with an adhesive impregnated with an antimicrobial agent;   the transparent film/cast with aggregates of temperature sensitive liquid crystal esters having a radius cutout between a central opening and a perimeter.   
     
     
         12 . The integrated wound dressing device of  claim 11  further comprising a layer of double folded release paper below the bottom side of the transparent film/cast. 
     
     
         13 . The integrated wound dressing device of  claim 11  where the liquid crystal temperature sensitive crystal esters are mixed with black carbonaceous powder. 
     
     
         14 . The integrated wound dressing device of  claim 11  where liquid crystal temperature sensitive esters are only present in a half of the transparent film/cast. 
     
     
         15 . The integrated wound dressing device of  claim 1  where the liquid crystal temperate sensitive film or cast is applied in longitudinal stripes on the top side of the transparent film layer. 
     
     
         16 . The integrated wound dressing device of  claim 1  where the liquid crystal temperature sensitive film or cast is applied in a spotted-pattern on the top side of the transparent film layer.